The Canonical LTD has released an updated version of its long term support (LTS) Linux distribution Ubuntu Linux 18.04.02. You must upgrade to get corrections for security problem as this version made a few adjustments for the severe issue found in Ubuntu version 18.04.02. The Ubuntu LTS enablement (also called HWE or Hardware Enablement) stacks provide newer kernel and X support for existing Ubuntu LTS releases. These enablement stacks can be installed manually but are also available when installing with Ubuntu LTS point release media. These newer enablement stacks are meant for desktop and server and even recommended for cloud or virtual images.